Changlei machinery is a major manufacturer of machinery for mining and quarrying machinery.In recent years, the growing of the economic construction year by year, making the building nonmetallic materials become the third industry after the oil and coal in the ore industry.   
cement crusher is mainly composed of several parts such as fixed body, rotating body, the safety device, adjusting device and other components.In the shutdown period, it should start once a month engines, construction machinery thing devices, connect the positive cable first time placement.Protective planch of movable jaw plate.Jaw stone crusher working principle of this jaw crusher operation adopts the electric motor as the power. The eccentric shaft is revolved by an electric motor through v-belts. It causes the swing jaw following the preconcerted path to crush the feeding material. 
Changlei as an excellent Chinese mining machinery and equipment research and development manufacturer has an absolute advantage to crushers.We will use the most reasonable price, giving customers a safe and practical quality and good equipment.If you are interested in our products and want to know more , please visit our website :  http://www.minestonecrusher.com to get to know or get the information you want .